There are however a number of drawbacks with fish oil, particularly cod liveroil that you normally find on the high street shelves.

Toxins - Because the seas and oceans are now so contaminated toxins such as mercury and PCBs and a host of other chemicals regularly feature as a hazard in fish and in fish oil. It's a few years since products were removed from shelves for illegal levels of mercury, but who's checking? Have the seas got betteror worse?

Purity - Cod liver oil is mostly mono and saturated fats not omega 3 DHA so most of what you are paying for is more of the oils that we typically we have an eccess of.

Sustainability - International fish stocks are now at a record low and marine biology and various oceanic ecosystems are facing collapse.

Ethics - You may not care about cod but it's not just fish that get caught in massive modern factory fishing methods. Dolphins, whales, sharks, turtles are all at risk from modern industrial fishing methods.

This January saw a vegan phenomenon as over 20,000 people signed up to veganuary the campaign to encourage people to try vegan diets.

Whilst VegfestUK continues to see record numbers of visitors to VegfestUK events ( over 10,000 to Brighton centre and London Olympia ) with an impressive number of visitors to the very first vegfest in Scotland at the SECC in Glasgow there still remains a dilemma.

The statistics are back for vegfestUK Glasgow and whilst the overall numbers were impressive disappointingly only 8% were meat eaters.

Campaigners are quick to point out that simply replacing meat with cheese will not make the world a healthier more sustainable more ethical place so it's important to persuade vegetarians to go vegan.

However if many more meat eaters don't quickly switch onto a wholefood plant based diet chronic health diseases will continue to rise the planet is in dire jeopardy we will run out of water and there is not enough land to waste food feeding it to farm an…